Oracle PMTS 2025 Screening Interview: BST & Parking System LLD
Question Details
Post introduction, Interviewer asked 2 behavioural questions. Next, was
Kth Largest element in BST. (similar to https://leetcode.com/problems/kth-smallest-element-in-a-bst/description/) Was able t
Full Details
Post introduction, Interviewer asked 2 behavioural questions. Next, was
Kth Largest element in BST. (similar to https://leetcode.com/problems/kth-smallest-element-in-a-bst/description/) Was able to complete code along with boiler plate code to run it, but due to some issue in Hackerrank I was not able to compile it. This wasted atleast 7-8 min during which interviewer did nothing to help. HE was just watching me struggle. At last I got frustrated and told him to compile in its own system & check. Next I was asked to do a complete
LLD of multilevel parking system. I only had 20 mins left. I asked recruiter that due to time constraint what is expected and he mentioned that complete design with code. I was only able to define FR, NFR, class diagram and tell him my approach to solve for reserving & freeing the slot and discussed API design at high level. This infuriated me so much. I tried reaching recruiter multiple times regarding issues I faced, but he said he cannot help. Oracle -> If u want to ask LLD in screening, then atleast give time for it or stick to leetcode only. You want to copy Amazon and ask behavioural in all rounds, but your time management and how interviewers conduct SUCKS! Thumbs down to pathetic code of conduct.
About This Question
This is a reported interview question from a oracle interview for a swe role during the system design round reported in 2025.
It covers the following topics: Binary Tree, System Design, Heap .